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Biomedical subjects

V Stachniss

Publications and source records attributed to V Stachniss.

18 recordsLinked to original sources
PubMed1991

[The dimensional stability of hydrophilic impression materials after application of a disinfectant].

The influence of a disinfectant solution containing glutaraldehyde on the dimensional stability of 2 alginate and 4 elastomeric impression materials has been investigated. Die models were measured using a computer-controlled method and compared to the master die to assess the three-dimensional change in the impression material. After an immersion time of 10 min, a dimensional change did not occur. When using immersion times longer than 10 min, the accuracy of the alginate materials was generally more affected by the disinfecting solution than that of the elastomeric impression materials.

Alginates↗
PubMed1990

[Mercury release of silver amalgam fillings in vitro].

In vitro mercury release from silver amalgam fillings was analyzed by ICP (Inductively-coupled-plasma-atomic-emission-spectroscopy). Within 14 days 63.2 micrograms Hg and 41.5 micrograms Hg respectively, were released from unfinished and finished amalgam fillings (n = 5). The amounts of mercury found in this study were several times higher compared with the results from other in vitro-studies.

Dental Amalgam↗
PubMed1990

[Computer-assisted technologies in dentistry].

The introduction and production of the Cerec-System was the first time, when a method of computer-aided design and manufacturing (CAD/CAM) of dental restorations moves to the chairside. New technologies like optical impression, solid modelling of crown shapes by CAD-Programs or computer controlled milling were acquired from the field of industrial production. Nevertheless, the Cerec-Systems is indicated only in a limited range of clinical situations, and the production of a well fitting computer-designed full crown is not yet possible at this stage of development. It can only be guessed whether these advancements will be achieved in the near future.

Crowns↗
PubMed1979

[Repantography].

Explore the source record for details and available documents.

Dental Articulators↗
PubMed1977

[Errors in corrective impressions and their prevention].

In order to keep the degree of polymerisation of moulding materials as low as possible until they are applied, a lower working temperature for the first and second material is necessary. In addition, the preliminary impression is cooled in ice water so that the flow capacity of the correcting compound in the capillary cleft is improved and unreliable model reduction can thus be avoided.

Dental Impression Materials↗